Answer to Question #313002 in Statistics and Probability for Ken

Question

A professor grades student on 4 tests, a term paper, and a final examination. Each test counts as

15% of the course grade. The term paper counts as 20% of the course grade. The final

examination counts as 20% of the course grade. Alan has test scores of 80, 78, 92 and 84. Alan

received an 84 on his term paper. His final examination score was 88. Use the weighted mean

formula to find Alan’s average for the course. Hint: The sum of all weights is 100% = 1.

Answer 1

$\mu=(80+78+92+84)*0.15+(84+88)*0.20=84.5.$